Vise.



UNITED STATES- JOHN R. LONG, OF EAST AKRON, OHIO.

Patented July '7, 1903.

visa.

SPECIFICATION forming part of Letters Patent No. 732,757, dated July 7,1903.

Application filed June 2, 1902. Serial No. 109,850. (No model.) i

' To all whom it may concern.-

Be it known that I, JOHN R. LONG, a citizen of the United States,residing at East Akron, in the county of Summit and State of Ohio, haveinvented certain new and useful Improvements in Vises; and I do declarethat the following is a full, clear, and exact description of theinvention, which will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to an improvement in vis'es; and the object of theinvention is to provide avise of a given size with means for grippingobjects of a size out of all proportion to the capacity of the viseexcept bymy attachment, all substantially as shown and described, andparticularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation, partly insection, of my improved vise and gripping attachment combined; and Fig.2 is a plan View thereof. Fig. 3 is a perspective view of one form ofouter gripping. head or jaw, as hereinafter fully described; and Fig. 4is a section of a chain comprised in my attachment. Fig. 5 is a sideelevation, and Fig; 6 is a plan view, of a modified construction of thevise and particularly as to the location of the means for securing thefree end of the chain. Fig. 7 is a further modification of theinvention, in which the fixed end of the chain is secure to the movablemember.

As thus shown in the several views, the invention is comprised in a viseembodying what may be termed the supporting mem-' her or body A, havinga fixed jaw a, and the movable member B, projecting through member A atboth ends and having a jaw b at its front end to work with jaw a, andthese members are together horizontally rotatable on a suitable base OThe usual handledscrew D extends through the member 13 lengthwise and isengaged through a threaded sleeve lodged in the upper portion of the dogE, which is supported on pivot d in member A and adapted to slightlytilt thereon, so that when the vise is clamped on an object said dogwill engage base 0 at c and form a frictional look after a manner nowwell known to this style of Vises.

The member B has a jaw-head H at its rear or outer end provided with aset or pair of serrated V-shaped jaws h in this instance and which arespaced apart laterally such distance as to give a firm hold upon theobject gripped therein and which will prevent tilting of the object,whether it be a pipe or tube G, as shown in several figures, or someequip the same with an attachment in the form of a double-linked chainL, in which the links 2 are connected by pivot-pins 3, which projectthrough beyondthe sides of said links at each side a sufficient distanceto form engaging portions for the chain, and the said chain may havesuch length as to take in the largest object that can be handled on avise of a given size. This chain is adapted to be used in conjunctionwith the double grip-jaws h, and it may have one or both endspermanently engaged or both loosely connected, as maybe preferred. InFig. '1 it is shown as fixed to the body A at its lower end and hookedover projectionsfi on the outer extremity of jaw member B. In Fig. 5both ends are engaged with body A, and in Fig. 7 it is'engaged withmember B below and with body A above on hooks or projections 5. It isimmaterial whether the upper or the lower end be permanently fastened,and for that matter they might both be detachably fastened orpermanently, as already set forth. The invention, therefore, is not somuch in securing the chain as in its use and combination with themovable jaws h, whereby difierent objects or articlesof varying shapesand sizes maybe securedin the vise, and especially suchobjectsas cannotbe gripped between jaws a and b.

When an object is to be placed therein and held by the'chain, the member13 is run back or opened as much as may be necessary, and then as thesaid object is to be tightened in the vise the chain is brought aroundit and fastened on hooks 5 as tightly as possible, whereupon the memberB is operated to tighten. First, however, the member B is carriedforward snificiently to give it the requisite back movement whentightening is to occur.

The hooks or projections 5 are double or in pairs with space between forthe chainlinks to pass through and are set closely enough to be engagedby the extremities of pivot-pins 3, and thus the said pins take thestrain at this point, and they are made strong enough to withstand anystrain that can come upon them by reason of pressure through member l3and its fastening-screw.

'What I claim is- 1. In a bench-vise, a supporting member having asingle jaw, a movable member having a jaw at each end front and rear ofsaid supporting member and slidable therein, a chain operatively relatedto the rear jaw of said movable member and having end connection withthe supporting member, and a screw within said movable member to tightenand loosen the chain, said screw being rotatably fixed in one end ofsaid movable member, substantially as shown.

2. The vise comprising a rotatable supporting member with asingle jaw,and a movable member with a jaw at each end and extending bodily throughthe top ofthe supporting member, a chain arranged to work with the outerjaw of said movable member and having a free portion to take up slack,and a screw extending lengthwise into said movable member from the endopposite said chain and rotatably secured therein, and a lock for thesaid supporting member engaged through its top by said screw, wherebywhen said chain is tightened the entire vise is locked in a fixedposition, substantially as shown.

3. The vise having a supporting member with a single jaw, and a movablemember with a jaw at each end and slidably supported in the upperportion of said supporting member, in combination with a chain adaptedto work with the outer jaw of the movable member, a screw to move saidmovable member, a base on which both said members are rotatabletogether, and means operatively connected with said screw to lock saidbase against rotation, substantially as shown.

Witness my hand to the foregoing specification this th day of May, 1902.7

JOHN R. LONG. Witnesses:

R. I3. MOSER, T. M. MADDEN.

